Answer:
- extensive nervous systems.
- cylindrical, segmented bodies.
- hydrostatic skeletons.
Explanation:
Annelids are the segmented worms. They belong to kingdom animalia.
They can be characterized by;
- extensive nervous systems.- They have cerebral ganglion that varies in structure and the mobile active forms have the most complex brains.
- cylindrical, segmented bodies.
- They have bilaterally symmetrical. Cylindrical with segments
- hydrostatic skeletons - A flexible skeleton supported by fluid pressure.